ONLY FOR .223/5.56MM OR 300 BLACKOUT CALIBERS
*New Gen 2 Design. Same function with some improvements:

• Easier to charge
• Easier Install
• Flexible rubber end piece
• Same springs
• Approximately same mass

New version of the UBD-M4-D is UDBG2-M4-PD (Gen 2 Performance Duty)
A full mass version of our championship winning competition buffer.

• Same reciprocating mass as standard carbine buffer (3.2oz)
• Ideal for “duty” or “tactical” rifles
• Imbedded magnets keep dead blow weight in proper position for consistent shot to shot recoil and cycling
• Magnentic dead blow system eliminates bolt bounces
• 2-stage spring system for additional recoil dampening
• Smoother action
• Faster follow up shots on target
• Drops in any carbine buffer tube
• Captured
• Ideal when paired with lightened or standard weight/mil-spec bolt carriers
• Recommended to use adjustable gas.